题目内容

根据材料，全国的高速公路总里程有多少公里？

A. 19425
B. 20425
C. 18935
D. 17425

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Hydrogen is the fundamental element of the universe______it provides the building blocks from which the other elements are produced.

A. so that
B. now that
C. in that
D. but that

They were expected to be models of virtue, honoured as______for their character as for their learning.

A. much
B. more
C. great
D. many

1980年我国国民经济生产总值超过：

A. 10000亿元
B. 15000亿元
C. 20000亿元
D. 5000亿元

下列哪个国家是人口老龄化最为严重的国家？

A. 日本
B. 德国
C. 中国
D. 俄罗斯